5.13.7 Evaluator Behaviour

The behaviour of Guile's evaluator can be modified by manipulating the
evaluator options. For more information about options, See User level options interfaces. If you want to know which evaluator options are
available, See Evaluator options.

— Scheme Procedure: eval-options [setting]

Display the current settings of the evaluator options. If setting
is omitted, only a short form of the current evaluator options is
printed. Otherwise, setting should be one of the following
symbols:

Option interface for the evaluation options. Instead of using
this procedure directly, use the procedures eval-enable,
eval-disable, eval-set! and eval-options.

— Scheme Procedure: traps [setting]

Display the current settings of the evaluator traps options. If
setting is omitted, only a short form of the current evaluator
traps options is printed. Otherwise, setting should be one of the
following symbols: